[ovirt-users] Hyper converged network setup

Tailor, Bharat bharat at synergysystemsindia.com
Fri Sep 15 07:21:40 UTC 2017 

Hi,

Any help from you guys would be appreciated.

Regrards
Bharat Kumar

G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
Udaipur (Raj.)
313001
Mob: +91-9950-9960-25





On Thu, Sep 14, 2017 at 7:02 PM, Tailor, Bharat <
bharat at synergysystemsindia.com> wrote:

> Hi,
>
> I've reinstall Centos7 Minimal on all three hosts. Installed Ovirt self
> hosted ova 4.1 on test1.localdomain.
> After installation completed, I got an error like engine vm is
> unreachable. I am able to ping engine from both IP and FQDN but unable to
> access it in browser. When I check engine VM status I got an error "Failed
> to connect to broker".
> I've enclosed engine-vm config snap and Error snap for more details. Kind
> help to resolve it.
>
>
> Regrards
> Bharat Kumar
>
> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
> Udaipur (Raj.)
> 313001
> Mob: +91-9950-9960-25
>
>
>
>
>
> On Wed, Sep 13, 2017 at 5:14 PM, Tailor, Bharat <
> bharat at synergysystemsindia.com> wrote:
>
>> I can't. I've destroyed that VM and clean all files. Now I am trying to
>> reinstall new engine VM.
>>
>> Regrards
>> Bharat Kumar
>>
>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>> Udaipur (Raj.)
>> 313001
>> Mob: +91-9950-9960-25
>>
>>
>>
>>
>>
>> On Wed, Sep 13, 2017 at 5:12 PM, Donny Davis <donny at fortnebula.com>
>> wrote:
>>
>>> Can you ping the VM when it comes up?
>>>
>>> On Wed, Sep 13, 2017 at 7:40 AM, Tailor, Bharat <
>>> bharat at synergysystemsindia.com> wrote:
>>>
>>>> I am not using any DNS server. I have made entries in /etc/hosts for
>>>> all Nodes and for engine VM also.
>>>>
>>>> Regrards
>>>> Bharat Kumar
>>>>
>>>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>>>> Udaipur (Raj.)
>>>> 313001
>>>> Mob: +91-9950-9960-25
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Sep 13, 2017 at 5:02 PM, Donny Davis <donny at fortnebula.com>
>>>> wrote:
>>>>
>>>>> Bharat,
>>>>>
>>>>> Are you using DNS for host names or /etc/hosts
>>>>>
>>>>> I personally place the engines hostname with ip address in /etc/hosts
>>>>> on all the hypervisors in case my DNS services go down.
>>>>> I also put the hypervisors in /etc/hosts too
>>>>>
>>>>> Hope this helps.
>>>>>
>>>>> On Wed, Sep 13, 2017 at 6:04 AM, Yaniv Kaul <ykaul at redhat.com> wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, Sep 13, 2017 at 8:42 AM, Tailor, Bharat <
>>>>>> bharat at synergysystemsindia.com> wrote:
>>>>>>
>>>>>>> Hi Charles & Donny,
>>>>>>>
>>>>>>> Thank you so much.
>>>>>>>
>>>>>>> @Donny my 3rd node's IP is 192.168.100.17(Mentioned wrong in above
>>>>>>> mail).
>>>>>>> I was trying to install ovirt ova on test2.localdomain. I've cleared
>>>>>>> all the steps and at last I got a message like "Engine is still
>>>>>>> unreachable". Kindly help me to troubleshoot it.
>>>>>>>
>>>>>>> @Ykaul How can I register myself in mailing list?
>>>>>>>
>>>>>>
>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>
>>>>>> Y.
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> Regrards
>>>>>>> Bharat Kumar
>>>>>>>
>>>>>>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>>>>>>> Udaipur (Raj.)
>>>>>>> 313001
>>>>>>> Mob: +91-9950-9960-25
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Sep 13, 2017 at 3:06 AM, Charles Kozler <
>>>>>>> ckozleriii at gmail.com> wrote:
>>>>>>>
>>>>>>>> Bharat -
>>>>>>>>
>>>>>>>> 1. Yes. Will need to configure switch port as a trunk and setup
>>>>>>>> your VLANs and VLAN ID's
>>>>>>>> 2. Yes
>>>>>>>> 3. You can still access the hosts. The engine itself crashing or
>>>>>>>> being down wont stop your VMs or hosts or anything (unless fencing). You
>>>>>>>> can use virsh
>>>>>>>> 4. My suggestion here is start immediately after a fresh server
>>>>>>>> install and yum update. Installer does a lot and checks a lot and wont like
>>>>>>>> things: ex - you setup ovirtmgmt bridged network yourself
>>>>>>>> 5. Yes. See #1, usually what I do is each ovirt node I have I set
>>>>>>>> an IP of .5, then .6, and so on. This way I can be sure my network itself
>>>>>>>> is working before adding a VM and attaching that NIC to it
>>>>>>>>
>>>>>>>> On Tue, Sep 12, 2017 at 4:41 PM, Donny Davis <donny at fortnebula.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> 1. Yes, you can do this
>>>>>>>>> 2. Yes, In linux it's called bonding and this can be done from the
>>>>>>>>> UI
>>>>>>>>> 3. You can get around using the Engine machine if required with
>>>>>>>>> virsh or virt-manager - however I would just wait for the manager to
>>>>>>>>> migrate and start on another host in the cluster
>>>>>>>>> 4.  The deployment will take care of everything for you. You just
>>>>>>>>> need an IP
>>>>>>>>> 5. Yes, you can use vlans or virtual networking(NSXish) called OVS
>>>>>>>>> in oVirt.
>>>>>>>>>
>>>>>>>>> I noticed on your deployment machines 2 and 3 have the same IP.
>>>>>>>>> Might want to fix that before deploying
>>>>>>>>>
>>>>>>>>> Happy trails
>>>>>>>>> ~D
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tue, Sep 12, 2017 at 2:00 PM, Tailor, Bharat <
>>>>>>>>> bharat at synergysystemsindia.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi Charles,
>>>>>>>>>>
>>>>>>>>>> Thank you so much to share a cool stuff with us.
>>>>>>>>>>
>>>>>>>>>> My doubts are still not cleared.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>    1. What If I have only single Physical network adaptor? Can't
>>>>>>>>>>    I use it for management network & production network both.
>>>>>>>>>>    2. If I have two Physical network adaptor, Can I configure
>>>>>>>>>>    NIC teaming as like Vmware ESXi.
>>>>>>>>>>    3. What If my ovirt machine fails during production period?
>>>>>>>>>>    In vmware we can access ESXi hosts and VM without Vcenter and do all the
>>>>>>>>>>    stuffs. Can we do the same with Ovirt & KVM.
>>>>>>>>>>    4. To deploy ovirt engine VM, what kind of configuration I'll
>>>>>>>>>>    have to do on network adaptors? (eg. just configure IP on physical network
>>>>>>>>>>    or have to create br0 for it.)
>>>>>>>>>>    5. Can I make multiple VM networks for vlan configuration?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Regrards
>>>>>>>>>> Bharat Kumar
>>>>>>>>>>
>>>>>>>>>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>>>>>>>>>> Udaipur (Raj.)
>>>>>>>>>> 313001
>>>>>>>>>> Mob: +91-9950-9960-25
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Tue, Sep 12, 2017 at 9:30 PM, Charles Kozler <
>>>>>>>>>> ckozleriii at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Interestingly enough I literally just went through this same
>>>>>>>>>>> thing with a slight variation.
>>>>>>>>>>>
>>>>>>>>>>> Note to the below: I am not sure if this would be considerd best
>>>>>>>>>>> practice or good for something long term support but I made due with what I
>>>>>>>>>>> had
>>>>>>>>>>>
>>>>>>>>>>> I had 10Gb cards for my storage network but no 10Gb switch, so I
>>>>>>>>>>> direct connected them with some fun routing and /etc/hosts settings. I also
>>>>>>>>>>> didnt want my storage network on a routed network (have firewalls in the
>>>>>>>>>>> way of VLANs) and I wanted the network separate from my ovirtmgmt - and, as
>>>>>>>>>>> I said, had no switches for 10Gb. Here is what you need at a bare minimum.
>>>>>>>>>>> Adapt / change it as you need
>>>>>>>>>>>
>>>>>>>>>>> 1 dedicated NIC on each node for ovirtmgmt. Ex: eth0
>>>>>>>>>>>
>>>>>>>>>>> 1 dedicated NIC to direct connect node 1 and node 2 - eth1 node1
>>>>>>>>>>> 1 dedicated NIC to direct connect node 1 and node 3 - eth2 node1
>>>>>>>>>>>
>>>>>>>>>>> 1 dedicated NIC to direct connect node 2 and node 1 - eth1 node2
>>>>>>>>>>> 1 dedicated NIC to direct connect node 2 and node 3 - eth2 node2
>>>>>>>>>>>
>>>>>>>>>>> 1 dedicated NIC to direct connect node 3 and node 1 - eth1 node3
>>>>>>>>>>> 1 dedicated NIC to direct connect node 3 and node 2 - eth2 node3
>>>>>>>>>>>
>>>>>>>>>>> You'll need custom routes too:
>>>>>>>>>>>
>>>>>>>>>>> Route to node 3 from node 1 via eth2
>>>>>>>>>>> Route to node 3 from node 2 via eth2
>>>>>>>>>>> Route to node 2 from node 3 via eth2
>>>>>>>>>>>
>>>>>>>>>>> Finally, entries in your /etc/hosts which match to your routes
>>>>>>>>>>> above
>>>>>>>>>>>
>>>>>>>>>>> Then, advisably, a dedicated NIC per box for VM network but you
>>>>>>>>>>> can leverage ovirtmgmt if you are just proofing this out
>>>>>>>>>>>
>>>>>>>>>>> At this point if you can reach all of your nodes via this direct
>>>>>>>>>>> connect IPs then you setup gluster as you normally would referencing your
>>>>>>>>>>> entries in /etc/hosts when you call "gluster volume create"
>>>>>>>>>>>
>>>>>>>>>>> In my setup, as I said, I had 2x 2 port PCIe 10Gb cards per
>>>>>>>>>>> server so I setup LACP as well as you can see below
>>>>>>>>>>>
>>>>>>>>>>> This is what my Frankenstein POC looked like:
>>>>>>>>>>> http://i.imgur.com/iURL9jv.png
>>>>>>>>>>>
>>>>>>>>>>> You can optionally choose to setup this network in ovirt as well
>>>>>>>>>>> (and add the NICs to each host) but dont configure it as a VM network. Then
>>>>>>>>>>> you can also, with some other minor tweaks, use these direct connects as
>>>>>>>>>>> migration networks rather than ovirtmgmt or VM network
>>>>>>>>>>>
>>>>>>>>>>> On Tue, Sep 12, 2017 at 9:12 AM, Tailor, Bharat <
>>>>>>>>>>> bharat at synergysystemsindia.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Hi,
>>>>>>>>>>>>
>>>>>>>>>>>> I am trying to deploy 3 hosts hyper converged setup.
>>>>>>>>>>>> I am using Centos and installed KVM on all hosts.
>>>>>>>>>>>>
>>>>>>>>>>>> Host-1
>>>>>>>>>>>> Hostname - test1.localdomain
>>>>>>>>>>>>  eth0 - 192.168.100.15/24
>>>>>>>>>>>> GW - 192.168.100.1
>>>>>>>>>>>>
>>>>>>>>>>>> Hoat-2
>>>>>>>>>>>> Hostname - test2.localdomain
>>>>>>>>>>>> eth0 - 192.168.100.16/24
>>>>>>>>>>>> GW - 192.168.100.1
>>>>>>>>>>>>
>>>>>>>>>>>> Host-3
>>>>>>>>>>>> Hostname - test3.localdomain
>>>>>>>>>>>> eth0 - 192.168.100.16/24
>>>>>>>>>>>> GW - 192.168.100.1
>>>>>>>>>>>>
>>>>>>>>>>>> I have created two gluster volume "engine" & "data" with
>>>>>>>>>>>> replica 3.
>>>>>>>>>>>> I have add fqdn entry in /etc/hosts for all host for DNS
>>>>>>>>>>>> resolution.
>>>>>>>>>>>>
>>>>>>>>>>>> I want to deploy Ovirt engine self hosted OVA to manage all the
>>>>>>>>>>>> hosts and production VM and my ovirt-engine VM should have HA enabled.
>>>>>>>>>>>>
>>>>>>>>>>>> I found multiple docs over internet to deply
>>>>>>>>>>>> Self-hosted-engine-ova but I don't what kind of network configuration I've
>>>>>>>>>>>> to do on Centos network card & KVM. As KVM docs suggest that I've to create
>>>>>>>>>>>> a bridge network for Pnic to Vnic bridge. If I configure a bridge br0 for
>>>>>>>>>>>> eth0 bridge that I can't see eth0 while deploying ovirt-engine setup at NIC
>>>>>>>>>>>> card choice.
>>>>>>>>>>>>
>>>>>>>>>>>> Kindly help me to do correct configuration for Centos hosts,
>>>>>>>>>>>> KVM & ovirt-engine-vm for HA enabled DC.
>>>>>>>>>>>> Regrards
>>>>>>>>>>>> Bharat Kumar
>>>>>>>>>>>>
>>>>>>>>>>>> G15- Vinayak Nagar complex,Opp.Maa Satiya, ayad
>>>>>>>>>>>> Udaipur (Raj.)
>>>>>>>>>>>> 313001
>>>>>>>>>>>> Mob: +91-9950-9960-25
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> Users mailing list
>>>>>>>>>>>> Users at ovirt.org
>>>>>>>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Users mailing list
>>>>>>>>>> Users at ovirt.org
>>>>>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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